Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/68448
標題: Extrusion processing of rice-based breakfast cereals enhanced with tocopherol from a Chinese medical plant
作者: Lin, Y.H.
Yeh, C.S.
Lu, S.
關鍵字: barrel temperature
screw extrusion
feed moisture
bran oil
starch
corn
antioxidants
oryzanol
cooking
cowpea
期刊/報告no:: Cereal Chemistry, Volume 80, Issue 4, Page(s) 491-494.
摘要: Brown rice flour was mixed with a Chinese medical plant (Euryale ferox Salisb.) and processed to make ready-to-eat breakfast cereals using twin-screw extrusion. Levels of 15 and 20% feed moisture in flour, and 200 and 250 rpm screw speed were set, and the physicochemical properties and content of alpha-, beta-, gamma-, and delta-tocopherols were determined. The data showed that 15% feed moisture gave a low bulk density and water absorption index but a high expansion ratio and water solubility index. High screw speed (250 rpm) produced a result similar to that of 15% feed moisture. A sample with 85% brown rice flour with 15% E. ferox Salisb. retained the highest content of alpha-, beta-, gamma-, and delta-tocopherols (125, 6, 78, and 9 mug/g), respectively. The optimum extrusion conditions determined were 15% E. ferox Salisb. mixed with brown rice at 15% feed moisture and at 250 rpm screw speed.
URI: http://hdl.handle.net/11455/68448
ISSN: 0009-0352
文章連結: http://dx.doi.org/10.1094/cchem.2003.80.4.491
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